Improvement in seat-holder



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JOHIEL JACKSON, 0F COLUMBUSf WISCONSI.

Leners Patent "1%. 103,620, dated May 31,- 1870.

Moc- IMPROVMENT IN'` SEAT-HOLDER.

. The Schedule referred to in these Letters Patent and making part ofthe same To all whom it may concern Be it known that I, J QHIEL JAcKsoN, o'f Columbus, in the county of Columbia and State of Wisconsin,have invented a new and -useful Improvemeutin Seat- Holders; and I dohereby declare that the following is a full, clear, and exactdescription thereof, which will enable 'others skilled inthe art to makeand use the same, reference being had to the accompanying drawingforming part of this specification.

Figure l is a top view of my improved seat-holder, represented asholding the bac-kand en d rails of a seat.

Figure 2 is a front view of the same. Similar letters of referenceindica-te corresponding parts.

My invention hasfor its object to furnish an improved holder for holdingthe rails of a seat while .being made, and which may be adjusted forholding larger' or smaller' seats, as may be required; and

Itconsists in the construction and combinationof the various parts ofthe holder, as hereinafter more fully described.

A is the foundation frame of the holder, consisting of two longitudinalbars, connected to each other near their ends by short cross-bars, asshown in tigrl'.

`B are arms tted into notches in the npper'sides of the longitudinalbars of the frame A, the forward ends of which are passed beneathstaples C driven into the said longitudinal bars of the i'ame A, and aresecured to said staples C by the spring catches D, as shown in figs. 1and 2.

To the rear ends of the bars B are attached U- shaped arms E, havingcam-levers'll pivoted to their outer ends, and having spring plates Gattached to Athem to rest against the outerA side of the seat-back,

for the cams F to operate against, to prevent the said cams frominjuring the surface of' said seat-back.

H are the end arms or barswhich extend along the inner vsidesof the endparts of the longitudinal bars ofthe frame A, with which they areconnected by a' pin or pins attached tothe said bars A or H, and whichenter holes in the vother of said bars, several holes being formed inthe said bars for the said pins, so that the holder may be extended orcontracted to adjust it forholding larger or smaller seats.

The bars H arel secured in place by the blocks I, which t intothe spacebetween the bars H, and the inner ends of which are hinged to thecross-barsro'f the frame A, so that. they may be turnedback, whendesired, to release the bars H to allow them to be adjusted or detached.

To the outer ends of the bars H are attached U- shaped arms lil,provided with lever-cams Fand elastic plates G, said arms and theirattachment being similar in every respect to those attached vto the barsB.

In using the machine, it is secured in the bench-vise bottom upward, andwith the back arms toward the operator. ,The end rails are then placedand clamped in the end arms, and the back rail is placed and clamped inthe back arms., The mit-er corners are now sawed down and nailed fast,and the lower edge of theY rails dressed oft". The seat-bottom is thenplaced upon the lower edges of Athe seat rails, marked around, turnedover, and secured to the holder by thumb-screws, and

its edges are dressed ol. The thumb-screws are now loosened, the bottomturned over and secured in place. The holder and seat are now turned topupward and secured in the vise, the back arms are detached, and 4the topedge dressed asfar as the end arms will permit. The back arms are thenreplaced, the end arms removed, and the dressing completed. The backarms are then loosened, and the. completed seat removed.

The holder may be used with equal-advan tage when making round-corneredseats.

Having thus described my invention,

I claim as new and desire to secure by Letters Patent- An improvedseat-holder, formed by the combina-- tion ofthe frame A, detachable reararms B E F G, secured in place by spring catches D, or equivalent,detachable and adjustable end arms H E F G, and

hinged blocks I, 'with each other, said parts being cons'tructed andoperating substantially as herein shown anddescribed, and for thepurpose set forth.

' J OHIEL v JACKSON. Witnesses:

' S. D. Coenen, M. G. ST. J om'.-

